版本bug

app/Repositories/UpgradeRepository.php

@@ -10,8 +10,10 @@ namespace App\Repositories;
 
 
 use App\Models\Upgrade;
+use Illuminate\Database\QueryException;
 use Illuminate\Support\Facades\DB;
 use Dingo\Api\Http\Response;
+use Illuminate\Support\Facades\Log;
 
 class UpgradeRepository {
     public function __construct(Upgrade $upgrade) {